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{x^{2} +1/x^{2} }=66 find x-1/x

2 Answers

7 votes

Answer:

x = ± 8

Explanation:

Note that

(x -
(1)/(x))² = x² - 2 +
(1)/(x^2) = 66 - 2 = 64

Take the square root of both sides

x -
(1)/(x) = ±
√(64) = ± 8

User Patrickzdb
by
7.8k points
3 votes

Answer:

Explanation:

The solution is attached herewith.

{x^{2} +1/x^{2} }=66 find x-1/x-example-1
User David Kuhta
by
8.1k points

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